Bison Facts

232,000: Number of bison in the United States residing on private ranches according to the 2002 USDA census.

4,000: Number of private U.S. ranches and farms raising bison.

250,000: Approximate bison herd size in Canada.

20,000: Approximate number of bison roaming on public lands in the U.S. and Canada.

500,000: Estimated herd size in North America today.

70 Million: Estimated North American herd size prior to 1600.

1,000: Estimated number of bison left at the turn of the 20th century before efforts were made to preserve and restore the species.

30,000: Number of bison slaughtered under federal inspection in 2004. This number is more than double the figure from 2000.

270-285: gestation period for bison cow.

40-50 pounds: approximate weight of a new born calf.

20 years: average reproductive life span of bison cow.

18-30 months: age of a mature meat animal.

2.42: grams of fat in a 100 gram serving of cooked bison.

10.15: grams of fat in a 100 gram serving of cooked beef.

10.97: grams of fat in a 100 gram serving of salmon.